Minn Kota Ulterra FAQ: 2020 Model, Spot Lock, and Why It's Beeping

I manage buying for a 40-person marine electronics shop. Our trolling motor budget runs about $220,000 a year, and I've tracked every Ulterra order in our system for the past six years. I'm not here to sell you a motor. I'm here to answer the questions that actually come up when someone is deciding whether a 2020 Minn Kota Ulterra makes sense—or why theirs won't stop beeping.

Is a 2020 Minn Kota Ulterra still a smart buy?

It can be, but it depends on the boat and the condition. The 2020 model has the two features most buyers want: i-Pilot Spot Lock and auto stow/deploy. It doesn't have the newer Quest motor's higher thrust or some of the software updates. For an 18-to-21-foot fiberglass fishing boat, that's often enough.

According to Minn Kota's spec sheet, the 2020 Ulterra was offered in 24V and 36V versions with several shaft lengths. Before you buy used, confirm the shaft length fits your bow height and the voltage matches your battery bank. Run the stow/deploy cycle a few times. If it hesitates or grinds, walk away. I'd rather buy a clean 2020 at a lower price than a new base model without features. Should mention: older software can be buggy with newer fish finders. Not a dealbreaker, but test it before you write a check.

Why does my Minn Kota Ulterra keep beeping?

A beeping Ulterra usually falls into three buckets: low remote battery, a blocked stow/deploy mechanism, or thermal/overcurrent protection. Our service team sees the first one most often. It's not a motor failure; it's the remote telling you it's about to die.

Check the remote display for an error code. I don't remember all the codes—don't quote me on exact numbers. If you hear one short beep when the motor powers on, that's normal. A repeated beep is the motor asking for attention. Power-cycle the system: unplug the battery, wait two minutes, reconnect. That clears a lot of false alarms. If the beeping continues, call a Minn Kota-authorized service shop. Opening the motor yourself can void warranty if it's still covered, and with a used 2020, you don't want to lose that safety net.

Does Spot Lock really hold like peanut butter?

'Sticky as peanut butter' is the phrase in our shop. The 2020 Ulterra's Spot Lock uses GPS, and on flat water it holds within a few feet. In wind or current, it works harder and the boat can swing around the spot. It's not a substitute for a real anchor in a storm.

The surprise wasn't how well Spot Lock worked. It was how often customers used it after they realized they could fish instead of wrestling a rope. For bass anglers and walleye guys, that's the upgrade that pays for itself. For big-water trolling or rough conditions, you still need a plan B.

What should I budget for a full Ulterra setup?

Start with the total cost of ownership, not the motor price. A line-item quote for an Ulterra install usually includes:

• The trolling motor itself
• Quick-release bracket or mounting plate
• Correct gauge wire and a circuit breaker
• Batteries—often two Group 31s (three for a 36V system)
• Labor for installation and setup

I compared three quotes for a 36V system once. The lowest motor quote was about $300 less, but the total quote ended up higher because it excluded the wiring kit and breaker. That's not a bargain; it's a hidden cost. Ask for itemized quotes from at least three vendors. Why does this matter? Because the lowest motor price rarely equals the lowest installed cost. And if you're rigging a 36V setup, a proper gauge wire run can add a couple of hours of labor. Plan for it.

Can the 2020 Ulterra work with my fish finder?

It depends on which version you buy. The i-Pilot Link version shares waypoints and routes with Humminbird. The regular i-Pilot version keeps things simpler—GPS Spot Lock without fish finder integration. For Garmin LiveScope or a 360 transducer, you need a compatible mount.

Not every Ulterra includes the same transducer mount. I want to say most 2020 Ulterras used a common mounting pattern, but don't hold me to that. Check the serial number and Minn Kota's compatibility chart before ordering brackets. Getting the right mount is easier than returning a box to a dealer.

Should I choose the Ulterra over the Terrova or Ultrex?

If your main priority is auto stow/deploy plus Spot Lock, the Ulterra is hard to beat. If you want cable steering and precision boat control, the Ultrex is the better fit. If you want a lighter, simpler motor with fewer moving parts, the Terrova might make more sense.

No universal winner here. The Ulterra has more mechanical complexity, so it honestly isn't for everyone. But the convenience of pressing a button and having the motor deploy itself is a real selling point for solo anglers and anyone with shoulder problems. The manual release backup is nice too—if the power goes out, you can still get the motor up. Weigh your priorities and pick the tool that matches them.

What about the odd search terms that lead people here?

If you searched 'the peanut butter,' '2020 Lincoln,' or 'is Chrisley still alive?' and landed here, I don't have those answers. The peanut butter one at least connects—Spot Lock is sticky. The other two are outside my spreadsheet. If you're here for a trolling motor, the questions above should cover the practical stuff.